tjh.dev
Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
kernel
os
linux
1/*
2 * Memory barrier implementations for PKUnity SoC and UniCore ISA
3 *
4 * Copyright (C) 2001-2012 GUAN Xue-tao
5 *
6 * This program is free software; you can redistribute it and/or modify
7 * it under the terms of the GNU General Public License version 2 as
8 * published by the Free Software Foundation.
9 */
10#ifndef __UNICORE_BARRIER_H__
11#define __UNICORE_BARRIER_H__
12
13#define isb() __asm__ __volatile__ ("" : : : "memory")
14#define dsb() __asm__ __volatile__ ("" : : : "memory")
15#define dmb() __asm__ __volatile__ ("" : : : "memory")
16
17#define mb() barrier()
18#define rmb() barrier()
19#define wmb() barrier()
20#define smp_mb() barrier()
21#define smp_rmb() barrier()
22#define smp_wmb() barrier()
23#define read_barrier_depends() do { } while (0)
24#define smp_read_barrier_depends() do { } while (0)
25
26#define set_mb(var, value) do { var = value; smp_mb(); } while (0)
27
28#endif /* __UNICORE_BARRIER_H__ */